high7.2
CVE-2026-116796
Highcharts Core: `javascript:` URL in an `xlink:href` attribute survives text filtering and reaches exported charts
Impact
Highcharts JS is a JavaScript charting library based on SVG. From 10.3.2 until 11.4.9, 12.6.2, and 13.1.1, Highcharts accepts an SVG anchor xlink:href attribute without applying the allowed-scheme check used for href and src. An attacker who controls a chart text option can preserve a javascript URL in serialized chart output. When exported or server-rendered SVG is parsed again and a user activates the link, script runs in the origin of that document. This issue is fixed in 11.4.9, 12.6.2 and 13.1.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | highcharts | >= 10.3.2, < 11.4.9 | 11.4.9 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-mw4f-gj5x-6xr4
- https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4
- https://nvd.nist.gov/vuln/detail/CVE-2026-116796
- https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88
- https://github.com/highcharts/highcharts/releases/tag/v13.1.1